As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW HAD AN IDG CAUTION MESSAGE INFLIGHT AND RAN THE QRH. CREW MADE THE DECISION TO DIVERT TO CAK AS IT WAS A MX BASE AND COULD LIKELY DEAL WITH THE ISSUE BETTER THAN AN OUTSTATION. IDG 2 CAUTION MESSAGE IN FLIGHT. QRH RUN IDG 2 DISCONNECT PUSHED. / DEF IDG 2 PER MEL 24-11-01-2 CAT A. REMOVED AND REPLACED R/H ENGINE IDG ASSEMBLY IAW CRJ900 AMM 24-11-01-000/400-801-A01. OPS CHECK AND LEAK CHECK GOOD AT THIS TIME.